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研究了一种将苯甲醇直接氧化成苯甲醛的催化体系:氯化金属卟啉/离子液体/氧化剂(MTPPCl/ILs/[O]),考察了该体系反应过程中温度、氯化金属卟啉、氧化剂、轴向配体和离子液体的种类等因素对反应收率的影响。结果表明,催化剂氯化锰卟啉、溶剂1-丁基-3-甲基咪唑硫酸氢盐离子液体、氧化剂过硫酸钾组成的催化体系MnTPPCl/[Bmim]HSO4/K2S2O8在苯甲醇直接催化氧化成苯甲醛的反应中表现出很好的活性(>99%)和选择性(>99%),且该体系避免了使用传统的有机溶剂,可重复多次使用。
A catalytic system for the direct oxidation of benzyl alcohol to benzaldehyde was studied: metalloporphyrin / ionic liquid / oxidant (MTPPCl / ILs / [O]). The effects of reaction temperature, , Oxidants, axial ligands and ionic liquids and other factors on the reaction yield. The results showed that the catalytic system MnTPPCl / [Bmim] HSO4 / K2S2O8 composed of the catalyst of manganese chloride porphyrin, solvent 1-butyl-3-methylimidazolium bisulfate ionic liquid and oxidant potassium persulfate catalyzed oxidation of benzyl alcohol The reaction of benzaldehyde shows good activity (> 99%) and selectivity (> 99%), and the system avoids the use of traditional organic solvents and can be used repeatedly.